diff --git a/0.build.sh b/0.build.sh
index f11286fdeab1..c089b1db87ae 100755
--- a/0.build.sh
+++ b/0.build.sh
@@ -1,16 +1,16 @@
 #!/bin/bash
 THEDIR=$(dirname $(readlink -e ${BASH_SOURCE[0]}))
 
-. ${THEDIR}/0.env.sh
+# . ${THEDIR}/0.env.sh
 cd ${THEDIR}
 
 export DPNP_DEBUG=1
 
 python setup.py clean
-python setup.py build_clib
+DPLROOT=/opt/intel/oneapi/dpl/latest python setup.py build_clib
 
 # inplace build
-python setup.py build_ext --inplace
+CC=dpcpp python setup.py build_ext --inplace
 
 # development build. Root privileges needed
 # python setup.py develop
diff --git a/conda-recipe/activate_env.sh b/conda-recipe/activate_env.sh
deleted file mode 100644
index a004b335c79a..000000000000
--- a/conda-recipe/activate_env.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/bash
-
-if [ ! -z "${ONEAPI_ROOT}" ]; then
-    . ${ONEAPI_ROOT}/mkl/latest/env/vars.sh
-    . ${ONEAPI_ROOT}/compiler/2021.1-beta09/env/vars.sh
-    . ${ONEAPI_ROOT}/tbb/latest/env/vars.sh
-fi
diff --git a/conda-recipe/build.sh b/conda-recipe/build.sh
index f631ded8b811..d873320f80f8 100644
--- a/conda-recipe/build.sh
+++ b/conda-recipe/build.sh
@@ -3,9 +3,9 @@
 # if ONEAPI_ROOT is specified (use all from it)
 if [ -n "${ONEAPI_ROOT}" ]; then
     export DPCPPROOT=${ONEAPI_ROOT}/compiler/latest
-    # TODO uncomment when CI will be changed
-    # export MKLROOT=${ONEAPI_ROOT}/mkl/latest
+    export MKLROOT=${ONEAPI_ROOT}/mkl/latest
     export TBBROOT=${ONEAPI_ROOT}/tbb/latest
+    export DPLROOT=${ONEAPI_ROOT}/dpl/latest
 fi
 
 # if DPCPPROOT is specified (work with custom DPCPP)
diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index 6ea1470a5090..5abf8e057221 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -30,10 +30,11 @@ build:
     number: {{ GIT_DESCRIBE_NUMBER }}
     include_recipe: False
     script_env:
-      - _ONEAPI_ROOT # renamed for ignore in CI
-      - _DPCPPROOT # renamed for ignore in CI
+      - ONEAPI_ROOT
+      - DPCPPROOT
       - MKLROOT
       - TBBROOT
+      - DPLROOT
       - WHEELS_OUTPUT_FOLDER
 
 test:
diff --git a/conda-recipe/run_test.sh b/conda-recipe/run_test.sh
index 9aaa0ebc29ad..7780c9b98d14 100644
--- a/conda-recipe/run_test.sh
+++ b/conda-recipe/run_test.sh
@@ -3,9 +3,9 @@
 # if ONEAPI_ROOT is specified (use all from it)
 if [ -n "${ONEAPI_ROOT}" ]; then
     export DPCPPROOT=${ONEAPI_ROOT}/compiler/latest
-    # TODO uncomment when CI will be changed
-    # export MKLROOT=${ONEAPI_ROOT}/mkl/latest
+    export MKLROOT=${ONEAPI_ROOT}/mkl/latest
     export TBBROOT=${ONEAPI_ROOT}/tbb/latest
+    export DPLROOT=${ONEAPI_ROOT}/dpl/latest
 fi
 
 # if DPCPPROOT is specified (work with custom DPCPP)
diff --git a/dpnp/backend/CMakeLists.txt b/dpnp/backend/CMakeLists.txt
index a39996e62e23..229f903dbcae 100644
--- a/dpnp/backend/CMakeLists.txt
+++ b/dpnp/backend/CMakeLists.txt
@@ -38,14 +38,6 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules")
 # -----------------------------------------------------------------------------------------------
 if(DEFINED ENV{ONEAPI_ROOT})
   set(DPNP_ONEAPI_ROOT "$ENV{ONEAPI_ROOT}" CACHE PATH "Folder contains oneapi tool set")
-else()
-  if(UNIX)
-    set(DPNP_ONEAPI_ROOT "/opt/intel/oneapi" CACHE PATH "Folder contains oneapi tool set")
-  elseif(WIN32)
-    set(DPNP_ONEAPI_ROOT "C:/Program Files (x86)/Intel/oneAPI" CACHE PATH "Folder contains oneapi tool set")
-  else()
-    message(FATAL_ERROR "Unsupported system ${CMAKE_SYSTEM}")
-  endif()
 endif()
 
 option(DPNP_STATIC_LIB_ENABLE "Enable build DPNP static library" FALSE)
@@ -253,8 +245,8 @@ target_link_libraries(dpnp_backend_c PUBLIC ${DPNP_MATHLIB_DEP_LIBS})
 
 # Parallel STL from DPC++
 if(NOT WIN32)
-  find_package(PSTL REQUIRED)
-  target_include_directories(dpnp_backend_c PUBLIC ${PSTL_INCLUDE_DIR})
+  find_package(DPL REQUIRED)
+  target_include_directories(dpnp_backend_c PUBLIC ${DPL_INCLUDE_DIR})
 endif()
 
 # SYCL queue manager
diff --git a/dpnp/backend/cmake/Modules/FindPSTL.cmake b/dpnp/backend/cmake/Modules/FindDPL.cmake
similarity index 66%
rename from dpnp/backend/cmake/Modules/FindPSTL.cmake
rename to dpnp/backend/cmake/Modules/FindDPL.cmake
index 6babadf06b47..a5301e6fda97 100644
--- a/dpnp/backend/cmake/Modules/FindPSTL.cmake
+++ b/dpnp/backend/cmake/Modules/FindDPL.cmake
@@ -24,27 +24,30 @@
 # *****************************************************************************
 
 # The following variables are optionally searched for defaults
-#  PSTL_ROOT_DIR:     Base directory where all components are found
+#  DPLROOT:         Environment variable to specify custom search place
+#  ONEAPI_ROOT:     Environment variable to specify search place from oneAPI
 #
 # The following are set after configuration is done:
-#  PSTL_FOUND
-#  PSTL_INCLUDE_DIR
+#  DPL_FOUND
+#  DPL_INCLUDE_DIR
 
 include(FindPackageHandleStandardArgs)
 
-set(PSTL_ROOT_DIR
-    "${DPNP_ONEAPI_ROOT}/dpl"
-    CACHE PATH "Folder contains PSTL headers")
+set(DPNP_ONEAPI_DPL "$ENV{DPNP_ONEAPI_ROOT}/dpl/latest" CACHE PATH "Folder contains DPL files from ONEAPI_ROOT")
+
+if(DEFINED ENV{DPLROOT})
+  set(DPNP_DPLROOT "$ENV{DPLROOT}" CACHE PATH "Folder contains DPL files from DPLROOT")
+endif()
 
 find_path(
-  PSTL_INCLUDE_DIR oneapi/dpl/algorithm
-  HINTS ENV CONDA_PREFIX ${PSTL_ROOT_DIR} # search order is important
-  PATH_SUFFIXES include latest/linux/include
-  DOC "Path to PSTL include files")
+  DPL_INCLUDE_DIR oneapi/dpl/algorithm
+  HINTS ${DPNP_DPLROOT} ${DPNP_ONEAPI_DPL} ENV CONDA_PREFIX ENV PREFIX # search order is important
+  PATH_SUFFIXES include linux/include
+  DOC "Path to DPL include files")
 
-find_package_handle_standard_args(PSTL DEFAULT_MSG PSTL_INCLUDE_DIR)
+find_package_handle_standard_args(DPL DEFAULT_MSG DPL_INCLUDE_DIR)
 
-if(PSTL_FOUND)
-  message(STATUS "Found PSTL:                      (include: ${PSTL_INCLUDE_DIR})")
-  # mark_as_advanced(PSTL_ROOT_DIR PSTL_INCLUDE_DIR)
+if(DPL_FOUND)
+  message(STATUS "Found DPL:                       (include: ${DPL_INCLUDE_DIR})")
+  # mark_as_advanced(DPNP_DPLROOT DPL_INCLUDE_DIR)
 endif()
diff --git a/dpnp/backend/cmake/Modules/FindMathLib.cmake b/dpnp/backend/cmake/Modules/FindMathLib.cmake
index 521e79ed3d1e..a5b5e1602e2e 100644
--- a/dpnp/backend/cmake/Modules/FindMathLib.cmake
+++ b/dpnp/backend/cmake/Modules/FindMathLib.cmake
@@ -24,7 +24,8 @@
 # *****************************************************************************
 
 # The following variables are optionally searched for defaults
-#  MATHLIB_ROOT_DIR:     Base directory where all components are found
+#  MKLROOT:         Environment variable to specify custom search place
+#  ONEAPI_ROOT:     Environment variable to specify search place from oneAPI
 #
 # The following are set after configuration is done:
 #  MATHLIB_FOUND
@@ -33,9 +34,11 @@
 
 include(FindPackageHandleStandardArgs)
 
-set(MATHLIB_ROOT_DIR
-    "${DPNP_ONEAPI_ROOT}/mkl"
-    CACHE PATH "Folder contains mathlib")
+set(DPNP_ONEAPI_MKL "$ENV{DPNP_ONEAPI_ROOT}/mkl/latest" CACHE PATH "Folder contains Math Lib files from ONEAPI_ROOT")
+
+if(DEFINED ENV{MKLROOT})
+  set(DPNP_MKLROOT "$ENV{MKLROOT}" CACHE PATH "Folder contains Math Lib files from MKLROOT")
+endif()
 
 if(UNIX)
   set(MATHLIB_SYCL_LIB
@@ -51,14 +54,14 @@ endif()
 
 find_path(
   MATHLIB_INCLUDE_DIR oneapi/mkl.hpp
-  HINTS ENV CONDA_PREFIX ENV PREFIX ${MATHLIB_ROOT_DIR} # search order is important
-  PATH_SUFFIXES include latest/include
+  HINTS ${DPNP_MKLROOT} ${DPNP_ONEAPI_MKL} ENV CONDA_PREFIX ENV PREFIX # search order is important
+  PATH_SUFFIXES include include
   DOC "Path to mathlib include files")
 
 find_path(
   MATHLIB_LIBRARY_DIR ${MATHLIB_SYCL_LIB}
-  HINTS ENV CONDA_PREFIX ENV PREFIX ${MATHLIB_ROOT_DIR} # search order is important
-  PATH_SUFFIXES lib latest/lib/intel64
+  HINTS ${DPNP_MKLROOT} ${DPNP_ONEAPI_MKL} ENV CONDA_PREFIX ENV PREFIX # search order is important
+  PATH_SUFFIXES lib lib/intel64
   DOC "Path to mathlib library files")
 
 # TODO implement recurcive searching file (GLOB_RECURSE MY_PATH "/opt/intel/*/mkl.hpp")
@@ -68,5 +71,5 @@ find_package_handle_standard_args(MathLib DEFAULT_MSG MATHLIB_INCLUDE_DIR MATHLI
 
 if(MathLib_FOUND)
   message(STATUS "Found MathLib:                   (include: ${MATHLIB_INCLUDE_DIR}, library: ${MATHLIB_LIBRARY_DIR})")
-  mark_as_advanced(MATHLIB_ROOT_DIR MATHLIB_INCLUDE_DIR MATHLIB_LIBRARY_DIR)
+  # mark_as_advanced(DPNP_MKLROOT MATHLIB_INCLUDE_DIR MATHLIB_LIBRARY_DIR)
 endif()